# Brothh Docs

> Guides, references, and API playground for sellers, markets, facilities, and developers building on Brothh.

## Calculators

- [All calculators](https://docs.brothh.com/tools/calculators): Free calculators for cooking, farming, nutrition, and small food business.
- [Animal Water Needs](https://docs.brothh.com/tools/calculators/animal-water-needs): Daily, weekly, and monthly water by species, climate, and lactation state.
- [Aspect Ratio](https://docs.brothh.com/tools/calculators/aspect-ratio): Width, height, and ratio math for print, photo, video, and social — 1:1 to 21:9 presets plus custom.
- [Average Shipping Cost](https://docs.brothh.com/tools/calculators/average-shipping-cost): Weighted average shipping across your real zones and services — with fair flat-rate suggestion and per-order profit/loss.
- [Baking Substitutions](https://docs.brothh.com/tools/calculators/baking-substitutions): Out of eggs, butter, or milk? Get scaled substitute amounts and notes on how each swap changes your bake.
- [Batting Cut Size](https://docs.brothh.com/tools/calculators/batting-cut-size): Batting dimensions for a quilt top with long-arm overage — plus standard sizing match.
- [Beads Per Length](https://docs.brothh.com/tools/calculators/beads-per-length): Beads needed for a necklace or bracelet — account for clasp, spacer beads, and standard 16 in strand counts.
- [Beef Cuts Breakdown](https://docs.brothh.com/tools/calculators/beef-cuts-breakdown): What actually comes out of a beef carcass — primal by primal, pound by pound, with the cuts you'll get.
- [BMR & TDEE](https://docs.brothh.com/tools/calculators/bmr-tdee): Basal metabolic rate and total daily energy expenditure using the Mifflin-St Jeor equation + activity multiplier.
- [Board Feet](https://docs.brothh.com/tools/calculators/board-feet): Convert lumber dimensions to board feet and project cost — the standard unit for buying rough lumber.
- [Bone Broth Ratio](https://docs.brothh.com/tools/calculators/bone-broth-ratio): Bones, water, vinegar, and simmer time for a target yield of beef, chicken, or pork broth.
- [Break-Even Analysis](https://docs.brothh.com/tools/calculators/break-even): Fixed costs, variable cost per unit, and price — see the break-even unit count and revenue.
- [Brining Calculator](https://docs.brothh.com/tools/calculators/brining-calculator): Salt and water amounts for wet or dry brining, plus recommended brine times by protein.
- [Bulk Meat Savings](https://docs.brothh.com/tools/calculators/bulk-buy-savings): Compare a whole-animal purchase to grocery retail — see the real savings and freezer payback.
- [Butter Yield from Cream](https://docs.brothh.com/tools/calculators/butter-yield): How much butter (and buttermilk) a given cream volume produces, with optional salt math.
- [Candle Wax Weight](https://docs.brothh.com/tools/calculators/candle-wax): Wax pounds and fragrance oil for a batch of container candles — soy, paraffin, coconut, beeswax.
- [Candle Wick Size](https://docs.brothh.com/tools/calculators/wick-size): Wick recommendation (CD, ECO, LX series) by container diameter and wax type.
- [Candy Temperature Stages](https://docs.brothh.com/tools/calculators/candy-temp): Sugar-cook stages from thread to hard crack — with altitude adjustment.
- [Canning Processing Time](https://docs.brothh.com/tools/calculators/canning-processing-time): USDA boiling-water-bath times by recipe, jar size, and altitude — with safety guardrails for low-acid foods.
- [Cattle Feed Conversion](https://docs.brothh.com/tools/calculators/cattle-feed-conversion): Days to finish, feed pounds, and cost per gained pound for grass, mixed, or grain finishing.
- [Cheese Yield from Milk](https://docs.brothh.com/tools/calculators/cheese-yield): Expected cheese weight by milk type and cheese style — fresh, semi-hard, aged.
- [Chicken Coop Size](https://docs.brothh.com/tools/calculators/chicken-coop-size): Square feet per bird, nest boxes, and roost length for standard, bantam, or heavy-breed flocks.
- [Chicken Feed Conversion](https://docs.brothh.com/tools/calculators/chicken-feed-conversion): Broiler finish math and layer feed-per-dozen — with break-even egg pricing.
- [Clay Shrinkage](https://docs.brothh.com/tools/calculators/clay-shrinkage): Wet to bisque to glaze-fired size — with reverse calc to hit a target finished dimension.
- [Compost C:N Ratio](https://docs.brothh.com/tools/calculators/compost-ratio): Balance greens and browns for a hot pile — browns-to-greens by volume for the 25:1 to 30:1 sweet spot.
- [Cost Per Serving](https://docs.brothh.com/tools/calculators/cost-per-serving): Break a recipe or product cost into per-serving and per-unit pricing — foundation for profitable menu pricing.
- [Cost-Plus Pricing](https://docs.brothh.com/tools/calculators/cost-plus-pricing): Set a retail price from your cost and target margin — with a sanity check against competitor pricing.
- [CSA Share Pricing](https://docs.brothh.com/tools/calculators/csa-pricing): Set a fair, profitable CSA price — enter weeks, members, and per-share production cost; get the share price that covers overhead and margin.
- [Cure Salt Calculator](https://docs.brothh.com/tools/calculators/curing-salt): Prague Powder #1 and #2 amounts for bacon, ham, and charcuterie — with USDA nitrite ppm guardrails.
- [Daily Hydration](https://docs.brothh.com/tools/calculators/hydration): Water target by bodyweight, activity level, and climate — in ounces, cups, and liters.
- [Dairy Milk Yield](https://docs.brothh.com/tools/calculators/dairy-yield): Daily and annual milk, cheese, and butter potential by species and breed.
- [Dehydration Yield](https://docs.brothh.com/tools/calculators/dehydration-yield): Fresh to dried weight for fruits, veggies, and herbs — with dehydrator time estimates.
- [Dough Hydration](https://docs.brothh.com/tools/calculators/dough-hydration): Baker percentage math for flour, water, salt, and levain — get the ratios right every bake.
- [Egg Production Forecast](https://docs.brothh.com/tools/calculators/egg-production): Project weekly, monthly, and annual egg output from flock size, breed lay rate, and seasonal drop-off.
- [Equipment Depreciation](https://docs.brothh.com/tools/calculators/equipment-depreciation): Straight-line depreciation schedule by equipment type — for tax planning and product pricing.
- [Event Food Quantity](https://docs.brothh.com/tools/calculators/event-food-quantity): Pounds of main, sides, drinks, and supplies for any guest count and event style — BBQ to plated dinner.
- [Fabric Yardage](https://docs.brothh.com/tools/calculators/fabric-yardage): Yards needed by garment, size, and bolt width — plus an extra allowance for directional prints.
- [Farm Yield Estimator](https://docs.brothh.com/tools/calculators/farm-yield-estimator): Estimate harvest from bed area, plant spacing, and average yield per plant — with risk buffer.
- [Farmers Market Stall ROI](https://docs.brothh.com/tools/calculators/market-stall-roi): Is this Saturday market worth the booth fee? Enter expected sales, booth cost, and travel; see gross, net, and break-even.
- [Fence Cost Estimator](https://docs.brothh.com/tools/calculators/fence-cost): Posts, materials, and labor by fence type — woven wire, barbed, electric, board, high-tensile.
- [Fermentation Time](https://docs.brothh.com/tools/calculators/fermentation-time): How long to wait for kraut, kimchi, hot sauce, or kombucha — adjusted for your room temperature.
- [Food Miles](https://docs.brothh.com/tools/calculators/food-miles): Compare the transport-mile footprint of buying local vs conventional grocery — with CO2e estimates.
- [Fragrance Oil %](https://docs.brothh.com/tools/calculators/candle-fragrance): Fragrance oil load by scent strength and wax type — with max-safe warnings.
- [Freezer Capacity](https://docs.brothh.com/tools/calculators/freezer-capacity): How much meat fits in 7, 15, 20 cubic feet — sized to half beef, whole pig, whole lamb.
- [Grazing Days](https://docs.brothh.com/tools/calculators/grazing-days): How long a pasture lasts — forage pounds × allowable utilization ÷ herd demand.
- [Greenhouse Heating BTU](https://docs.brothh.com/tools/calculators/greenhouse-btu): Heat load by glazing type, floor area, and temp delta — plus propane gallons per month.
- [Half or Quarter Beef](https://docs.brothh.com/tools/calculators/half-quarter-beef): Buying a share of beef? See the weight you'll take home and the cut-category breakdown.
- [Ham Size per Guest](https://docs.brothh.com/tools/calculators/ham-size): Spiral, boneless, and fresh ham sizing with cooking time and carving yield.
- [Hanging → Take-Home Weight](https://docs.brothh.com/tools/calculators/take-home-weight): From hanging carcass to packaged meat in your freezer — bone-in vs boneless yield by species.
- [Hay for Winter](https://docs.brothh.com/tools/calculators/hay-storage): Bales and storage space needed to feed your herd through winter.
- [Honey Yield Estimator](https://docs.brothh.com/tools/calculators/honey-yield): Estimate pounds of harvestable honey from hive count, local nectar flow, and colony strength.
- [Household Food Waste](https://docs.brothh.com/tools/calculators/food-waste): How much do you throw away? Enter weekly discard; see annual cost, emissions, and redirect ideas.
- [Irrigation Needs](https://docs.brothh.com/tools/calculators/irrigation-needs): Gallons per plant per day by crop, climate, and system efficiency — with weekly water cost.
- [Jam Pectin Ratio](https://docs.brothh.com/tools/calculators/jam-pectin-ratio): Sugar, pectin, and lemon juice ratios for low-sugar to traditional jam — by fruit pectin level.
- [Jerky Yield](https://docs.brothh.com/tools/calculators/jerky-yield): Fresh meat to finished jerky — yield by cut, trim loss, and dryness level.
- [Joist Spacing & Count](https://docs.brothh.com/tools/calculators/joist-spacing): Joist count for a deck or floor at 12, 16, 19.2, or 24 in on center — plus decking board count.
- [Kerf Allowance](https://docs.brothh.com/tools/calculators/kerf-allowance): How much material a saw blade eats across multiple cuts — ripping, crosscuts, bandsaw, laser.
- [Kiln Load](https://docs.brothh.com/tools/calculators/kiln-load): Pieces per shelf and total kiln capacity by firing type — bisque vs glaze touch rules.
- [Kitchen Unit Converter](https://docs.brothh.com/tools/calculators/unit-converter): Convert between grams, ounces, cups, and tablespoons — with ingredient density for accurate volume-to-weight swaps.
- [Knit Gauge → Cast-On](https://docs.brothh.com/tools/calculators/knit-gauge): Turn a swatch gauge into the exact cast-on and total row count for any size garment.
- [Knit Shaping Rate](https://docs.brothh.com/tools/calculators/knit-increase-decrease): Evenly space increases or decreases across a sleeve, hem, or shoulder — "inc 1 every X rows".
- [Lamb Feed Conversion](https://docs.brothh.com/tools/calculators/lamb-feed-conversion): Days to market and feed cost for grass, mixed, and grain-finished lamb.
- [Leather Weight → Thickness](https://docs.brothh.com/tools/calculators/leather-weight): Ounces per square foot to millimeters and inches — plus what projects each weight suits.
- [Live → Hanging Weight](https://docs.brothh.com/tools/calculators/hanging-weight): What percentage of a live animal becomes hanging weight — by species. Know what you're really paying for.
- [Macros Split](https://docs.brothh.com/tools/calculators/macros-split): Split daily calories into protein, carbs, and fat grams for cutting, maintaining, or bulking.
- [Manure Output](https://docs.brothh.com/tools/calculators/manure-output): Manure tons per year by species with NPK nutrient value and compost volume.
- [Marinade Ratio](https://docs.brothh.com/tools/calculators/marinade-ratio): Oil, acid, salt, and sugar amounts per pound of meat — with marinade time by protein type.
- [Meal Prep Cost](https://docs.brothh.com/tools/calculators/meal-prep-cost): Add up ingredient costs for a batch of prepped meals — see cost per meal, per person, and a weekly projection.
- [Meat Per Person Per Year](https://docs.brothh.com/tools/calculators/meat-per-person-year): Household planning math — servings, ounces, and species mix into an annual pounds target.
- [Miter Angle for Polygons](https://docs.brothh.com/tools/calculators/miter-angle-polygon): Saw-blade angle for cutting a regular polygon — picture frames, hexagons, octagons, pipe sections.
- [Mulch Coverage](https://docs.brothh.com/tools/calculators/mulch-coverage): Cubic yards, bags, and cost for mulching a garden or landscape at your chosen depth.
- [Oven Temperature Converter](https://docs.brothh.com/tools/calculators/temperature-converter): Convert between Fahrenheit, Celsius, and UK Gas Marks — with a "best for" hint for every temperature.
- [Packaging Cost Per Unit](https://docs.brothh.com/tools/calculators/packaging-cost-per-unit): Sum the real packaging stack — box, label, stickers, tissue, mailer, void fill, tape, ship label — into a single per-unit cost.
- [Paint Coverage](https://docs.brothh.com/tools/calculators/paint-coverage): Gallons of paint and primer for a surface area — latex, chalk, stain, varnish, with real $/gallon cost.
- [Pan Size Conversion](https://docs.brothh.com/tools/calculators/pan-size-conversion): Swap pans without wrecking a recipe — get the ingredient multiplier and bake-time adjustment between any two pan sizes.
- [Pasture Stocking Rate](https://docs.brothh.com/tools/calculators/pasture-stocking-rate): Animal units per acre — see whether your forage quality and head count balance.
- [Payroll True Cost](https://docs.brothh.com/tools/calculators/payroll-cost): Total cost to employ someone — wages + FICA + FUTA + state UI + workers comp + benefits. The real number, not the paycheck number.
- [Pickling Brine Calculator](https://docs.brothh.com/tools/calculators/pickling-brine): Vinegar, water, salt, and sugar amounts for quick fridge pickles or shelf-stable canning — with pH safety check.
- [Planting Density](https://docs.brothh.com/tools/calculators/planting-density): How many plants fit a row or bed? Enter spacing and area; get plant count and seed order quantity.
- [Plywood Sheet Layout](https://docs.brothh.com/tools/calculators/plywood-sheet-layout): Maximize pieces per 4x8 or 5x5 sheet — best orientation, kerf allowance, and waste percentage.
- [Pork Cuts Breakdown](https://docs.brothh.com/tools/calculators/pork-cuts-breakdown): Every primal from a whole or half pig — chops, bacon, ham, sausage — with curing options.
- [Pork Feed Conversion](https://docs.brothh.com/tools/calculators/pork-feed-conversion): Feed pounds and cost from weaner to finish weight — conventional and heritage pasture systems.
- [Profit Margin](https://docs.brothh.com/tools/calculators/profit-margin): Gross margin, net margin, and markup — convert between them cleanly so you do not mix up 40% margin and 40% markup.
- [Protein Needs](https://docs.brothh.com/tools/calculators/protein-needs): Daily protein target by bodyweight, activity, and goal — with breakpoints from sedentary to athletic.
- [Quilt Backing](https://docs.brothh.com/tools/calculators/quilt-backing): Total backing size and panels needed for a quilt top with long-arm or hand-quilting overage.
- [Quilt Binding Yardage](https://docs.brothh.com/tools/calculators/quilt-binding): Binding strip count and yardage for a quilt perimeter — with corner miter allowance.
- [Raised Bed Soil](https://docs.brothh.com/tools/calculators/raised-bed-soil): Cubic yards and bags needed for a raised bed box — with mix-recipe breakdowns.
- [Recipe Scaler](https://docs.brothh.com/tools/calculators/recipe-scaler): Scale any recipe up or down — halve it, double it, or fit a specific serving count with the original yield intact.
- [Resin Project Cost](https://docs.brothh.com/tools/calculators/resin-project-cost): Epoxy resin volume, Part A/B split, and total cost — with deep-pour exotherm warning for 1:1 mixes over 2 inches.
- [Ring Size Converter](https://docs.brothh.com/tools/calculators/ring-size-converter): Convert between US, UK, EU, and measured diameter or circumference — with fit advice.
- [Roast Time by Weight](https://docs.brothh.com/tools/calculators/roast-time): Oven roast times by cut, weight, and doneness — with USDA safe internal temps and rest times.
- [Safe Meat Thawing](https://docs.brothh.com/tools/calculators/meat-thawing): Thaw time by method (fridge, cold water, microwave) with USDA food-safety windows.
- [Seam Allowance Conversion](https://docs.brothh.com/tools/calculators/seam-allowance): Convert between 5/8, 3/8, 1/2 inch, and 1 cm seam allowances — with fabric offset per edge.
- [Seed Starting Calendar](https://docs.brothh.com/tools/calculators/seed-starting-calendar): Work back from your last frost date to the right day to sow indoors, transplant, and direct-seed.
- [Shipping Cost Estimator](https://docs.brothh.com/tools/calculators/shipping-cost): Zone-based parcel estimates — weight, box size, and destination into a shipping cost and price-to-customer.
- [Smoking Time by Cut](https://docs.brothh.com/tools/calculators/smoking-time): Low-and-slow smoke times by cut and pit temperature — with stall and wrap recommendations.
- [Soap Lye Calculator](https://docs.brothh.com/tools/calculators/soap-lye): Cold-process NaOH and water amounts for your oil blend — with superfat % for a balanced or extra-moisturizing bar.
- [Soil Amendment](https://docs.brothh.com/tools/calculators/soil-amendment): Lime and compost for pH correction and organic matter — plus P-K feeding recommendations.
- [Sourdough Starter Feeding](https://docs.brothh.com/tools/calculators/sourdough-feeding): Compute flour, water, and ripe time for any starter feed ratio and target hydration.
- [Stair Stringer Rise/Run](https://docs.brothh.com/tools/calculators/stair-stringer): IRC-safe riser height, tread depth, and stringer length from a total rise.
- [Superfat Percentage](https://docs.brothh.com/tools/calculators/soap-superfat): What 2%, 5%, or 10% superfat actually does to your soap — cleanse vs moisture tradeoff.
- [Tile Quantity](https://docs.brothh.com/tools/calculators/tile-quantity): Tiles + grout for a floor or wall — with pattern-specific waste (straight 10% to herringbone 20%).
- [Tractor Fuel Cost](https://docs.brothh.com/tools/calculators/tractor-fuel-cost): Diesel gallons per hour, per day, per year by HP and load — plus cost per acre.
- [True Product COGS (No-BS)](https://docs.brothh.com/tools/calculators/true-product-cogs): The real cost to make and sell one unit — materials with wastage, packaging, labor with burden, overhead, payment + platform fees, shipping absorbed, income + self-employment taxes. All in.
- [Turkey Size per Guest](https://docs.brothh.com/tools/calculators/turkey-size): Pounds of turkey per guest with leftovers — plus thaw time and fresh-vs-frozen decision guide.
- [Turkey Thaw Time](https://docs.brothh.com/tools/calculators/turkey-thaw-time): Fridge and cold-water thaw times — with a start-by datestamp so the bird is ready when the oven is.
- [Wastage Buffer Reference](https://docs.brothh.com/tools/calculators/wastage-buffer): Industry-standard waste percentages for 20 common maker materials — feed into the True Product COGS calc for honest pricing.
- [Whole Animal True Cost](https://docs.brothh.com/tools/calculators/whole-animal-cost): The $/lb math buyers get wrong — turn any live/hanging/take-home quote into out-the-door cost and compare to grocery retail.
- [Wholesale Markup](https://docs.brothh.com/tools/calculators/wholesale-markup): Price wholesale and retail in lockstep — keystone, MAP-friendly, and key-two markups with gross profit checks.
- [Wire Gauge Converter](https://docs.brothh.com/tools/calculators/wire-gauge): Convert between AWG, millimeters, and inches — with typical jewelry-making use cases per gauge.
- [Wood Drying Time](https://docs.brothh.com/tools/calculators/wood-moisture-drying): Air-drying months from freshly cut to target moisture content by species and thickness.
- [Wood Project Cost](https://docs.brothh.com/tools/calculators/wood-project-cost): Add lumber, hardware, finish, and labor into a true project cost — and cost per piece if you are making multiples.
- [Yarn Yardage Estimator](https://docs.brothh.com/tools/calculators/yarn-yardage): Total yards and skeins for a project by type, size, and yarn weight — with a buffer recommendation.
- [Yeast Converter](https://docs.brothh.com/tools/calculators/yeast-converter): Convert between active dry, instant, and fresh yeast — with baker’s percentage when you give flour weight.

## Glossary

- [All glossary terms](https://docs.brothh.com/tools/glossary): Plain-English definitions for food, farming, and maker terminology.
- [AWG (American Wire Gauge)](https://docs.brothh.com/tools/glossary/awg): Standard US wire thickness system. Smaller number = thicker wire. 10 AWG is thick structural; 30 AWG is fine beading wire.
- [Baker's Percentage](https://docs.brothh.com/tools/glossary/bakers-percentage): Every ingredient in a bread recipe expressed as a percent of flour weight. Flour is always 100%. Water 65-75%, salt ~2%, levain 15%.
- [Board Foot](https://docs.brothh.com/tools/glossary/board-foot): Lumber volume unit: 144 cubic inches. A 1"-thick × 12"-wide × 1-ft-long board is 1 board foot.
- [Brine](https://docs.brothh.com/tools/glossary/brine): A salt-water solution (wet brine) or salt rub (dry brine) that seasons and tenderizes meat by denaturing proteins and pulling moisture in.
- [Carbon Footprint (Food)](https://docs.brothh.com/tools/glossary/carbon-footprint): Total greenhouse gas emissions from producing and delivering a food item, measured in kg CO2-equivalent per serving or per kg.
- [COGS](https://docs.brothh.com/tools/glossary/cogs): Cost of Goods Sold — every cost directly tied to making and delivering one unit: materials, labor, packaging, shipping, processing fees.
- [CSA](https://docs.brothh.com/tools/glossary/csa): Community Supported Agriculture — members pay up-front for a share of a farm's harvest, delivered weekly through a season.
- [Dressing Percentage](https://docs.brothh.com/tools/glossary/dressing-percentage): Ratio of hanging (dressed) weight to live weight. Beef typically 60-64%, pork 72-76%, lamb 48-52%.
- [Dry-Aged Beef](https://docs.brothh.com/tools/glossary/dry-aged-beef): Beef aged on an open rack in a humidity-controlled cooler for 21-45+ days — moisture evaporates, flavor concentrates, enzymes tenderize.
- [Feed Conversion Ratio (FCR)](https://docs.brothh.com/tools/glossary/feed-conversion-ratio): Pounds of feed required to produce one pound of live-weight gain. Beef ~6-10:1, pork ~2.8:1, broiler chicken ~1.8:1.
- [Gauge (Knitting)](https://docs.brothh.com/tools/glossary/gauge-knitting): Stitches per inch — the foundation of any knitting pattern. Match the pattern's gauge exactly or the garment will be the wrong size.
- [Grass-Finished](https://docs.brothh.com/tools/glossary/grass-finished): Beef (or lamb) raised and finished entirely on pasture and forage, never grain. Different from "grass-fed" which requires only partial pasture.
- [Hanging Weight](https://docs.brothh.com/tools/glossary/hanging-weight): The weight of a butchered animal after hide, head, and viscera are removed — but before cuts and trim. What most farmers price on.
- [Karat vs Carat](https://docs.brothh.com/tools/glossary/karat-vs-carat): Karat is gold purity (24K = pure). Carat is gemstone weight (1 ct = 200 mg). Same pronunciation, different measurements.
- [Kerf](https://docs.brothh.com/tools/glossary/kerf): The width of material a saw blade removes with each cut. Table saw ~1/8", bandsaw ~1/32", laser ~1/100".
- [Keystone Pricing](https://docs.brothh.com/tools/glossary/keystone-pricing): Classic retail pricing formula: sell at 2× wholesale cost. Yields a 50% margin (100% markup).
- [Macros](https://docs.brothh.com/tools/glossary/macros): Macronutrients: protein, carbohydrates, and fat. The three calorie sources. Protein/carbs = 4 kcal/g; fat = 9 kcal/g.
- [Maillard Reaction](https://docs.brothh.com/tools/glossary/maillard-reaction): The browning chemistry between amino acids and sugars at 300°F+. Responsible for the crust on seared steak, bread, coffee, and roast vegetables.
- [Marbling](https://docs.brothh.com/tools/glossary/marbling): Intramuscular fat flecks inside a muscle — drives flavor, juiciness, and USDA quality grade.
- [Markup vs Margin](https://docs.brothh.com/tools/glossary/markup-vs-margin): Markup is cost-based (price / cost). Margin is price-based (profit / price). A 50% markup is a 33% margin — not the same.
- [Organic Certification](https://docs.brothh.com/tools/glossary/organic-certification): USDA Organic label requires 3 years of organic soil management, no synthetic pesticides, no GMOs, and third-party annual audit.
- [Primal Cut](https://docs.brothh.com/tools/glossary/primal-cut): The first major division of a carcass — chuck, rib, loin, round on beef. Every steak and roast is subdivided from a primal.
- [Sales Tax Nexus](https://docs.brothh.com/tools/glossary/sales-tax-nexus): The legal trigger that requires you to collect sales tax in a state. Physical presence creates nexus; so does exceeding the state's economic threshold.
- [Sourdough Starter](https://docs.brothh.com/tools/glossary/sourdough-starter): A live culture of wild yeast and lactic-acid bacteria kept alive by regular flour + water feedings. The leavening engine for sourdough bread.
- [Superfat](https://docs.brothh.com/tools/glossary/superfat): The percentage of oils in soap that are left unsaponified — uncombined with lye. Adds moisture and buffers the bar.
- [Take-Home Weight](https://docs.brothh.com/tools/glossary/take-home-weight): The actual packaged meat that ends up in your freezer — after the butcher cuts bone, trim, and fat from the hanging carcass.