Ask a craft brewery owner what they buy and they'll say malt. Ask a craft maltster what they sell and the answer is more complicated: raw barley bought a year in advance, converted through a week-long biological process that loses weight every single day, sold months later at a price that has to cover a farmer premium three to four times the feed-grain market. If you're running (or thinking about running) a standalone floor-malting business, the bookkeeping problem isn't really about beer. It's about tracking a commodity that physically shrinks while you own it, and getting paid on a timeline that doesn't match when you bought the grain.
That distinction matters because most of what's written about "craft beverage bookkeeping" is actually written for the brewery or the distillery — the businesses at the end of the barley-to-glass chain. A maltster sits in the middle, closer to a specialty grain processor than a beverage producer, and the accounting differences show up in three places: how you value grain inventory as it transforms, how you recognize revenue on contract-growing arrangements, and how you plan cash flow around a working-capital cycle that can run over a year before a single dollar comes back in.
What a Craft Maltster Actually Does (and Why It's Not "a Small Brewery")
A malthouse takes raw barley (occasionally wheat, rye, or oats) and converts it into malt — the base ingredient breweries and distillers need because raw grain won't ferment on its own. The conversion happens in three stages that together take roughly 8 to 9 days: steeping (48–72 hours, soaking the grain to 44–46% moisture), germination (4–5 days on the malting floor, where the grain is turned by hand or machine to keep germination even), and kilning (about 2 days, which halts germination and dries the grain back down to roughly 4% moisture).
The Craft Malt Guild's own definition draws a sharp line around what "craft" means here: a craft maltster produces under 10,000 metric tons of malt per year, with more than half of that grain sourced from within roughly 500 miles of the malthouse. That's a supply-chain commitment, not just a production-volume cap — and it's the reason the accounting looks different from a brewery's.
Floor malting specifically — spreading germinating grain in thin layers and turning it by hand rather than in mechanized drums — is the traditional, more labor-intensive method that many brewers specifically seek out for the character it gives finished malt. It's also slower and more expensive per ton than industrial malting, which matters when you're deciding how to price a batch.
The Grain Inventory Problem: Your Asset Loses Weight While You Own It
Here's the accounting wrinkle that doesn't exist for a brewery buying finished malt: barley loses measurable weight at every stage of the malting process, and you have to track that shrinkage as part of inventory costing, not as an afterthought.
During steeping, weight is lost to skimming (floating debris, chaff, dust) and to dissolved substances leaching into the water. During germination, the barley is biologically alive and respiring — burning stored starch for energy, which is unavoidable weight loss. After kilning, rootlets ("malt culms") are screened off and removed entirely. Net effect: a maltster typically loses somewhere in the range of 10–20% of the original barley weight by the time it becomes finished malt, with the exact number depending on barley variety, steep regime, and how aggressively rootlets are screened.
For your books, that means you cannot cost finished malt inventory the way a retailer costs a SKU it bought and is reselling unchanged. You need:
- A yield-ratio costing method that tracks pounds (or metric tons) of raw barley in against pounds of finished malt out, batch by batch, so your cost-per-unit of finished malt reflects the actual conversion loss for that lot — not an assumed average that drifts as barley varieties or process tweaks change your real yield.
- Work-in-process tracking across the 8–9 day cycle, since on any given day you likely have barley at multiple stages (steeping, germinating, kilning) simultaneously, each representing a different cost basis and a different stage of completion.
- A moisture-content reconciliation, since some of the "lost" weight is water that leaves during kilning, not lost value — you're tracking dry-matter yield, not just gross weight, to know whether a processing change actually cost you product or just changed moisture.
Get the yield-ratio wrong and two things break: your cost-per-ton pricing to brewers understates your real cost (you're implicitly assuming less shrinkage than actually happens), and your inventory valuation on the balance sheet overstates what's actually sitting in the kiln.
Contract-Growing Revenue: You're Also in the Farming-Finance Business
The second major difference from brewery/distillery bookkeeping is on the input side, not the output side. Most malting barley in the U.S. isn't bought on an open spot market — it's grown under multi-season contract between the maltster and a farmer, because malting-quality barley (specific protein levels, kernel plumpness, germination rate) is a narrower target than feed-grade barley and farmers need price certainty to commit acreage to it.
Craft maltsters, by industry accounts, typically pay farmers three to four times the feed-barley market price for contracted malting barley — a premium that's the whole point of "craft malt's" local-sourcing pitch, but one that has to be booked correctly. Two structures show up in practice, and they hit your books differently:
- Simple forward-purchase contracts — you agree on a price and volume before harvest, take delivery, and it's a straightforward purchase commitment (disclosed if material) followed by an ordinary inventory purchase when grain arrives. No revenue recognition complexity; the only nuance is recording the commitment itself if your contracts span more than one crop year.
- True contract-growing arrangements, where the maltster provides seed, agronomic input, or financing to the farmer in exchange for the harvest, sometimes with the maltster retaining title to the crop throughout. These look more like a financing or joint-production arrangement than a simple purchase, and the accounting treatment (when you recognize the input cost, whether advances to farmers are a receivable or a prepaid inventory cost) needs to match the actual contract terms, not just be defaulted to "purchases."
If your malthouse does any of the second kind, that's a case where getting a bookkeeper or accountant who's actually read your specific contract — not just applied a generic "farm inputs" template — pays for itself.
The Cash-Flow Timeline Nobody Warns You About
Put the shrinkage issue and the contract-growing issue together and you get the real operating challenge: the gap between paying for grain and collecting for malt can stretch far longer than a typical small-business cash cycle.
Malting barley contracts are often signed before planting, grain is delivered at harvest, and — depending on your storage capacity and your customers' order pipeline — that grain can sit as raw inventory for eight months to over a year before it's processed and sold as finished malt. That's not a hypothetical: large buyers have told contracted farmers to expect 8–15 months of on-farm storage in recent contract cycles, and a small malthouse buying from multiple growers inherits a version of that same storage-and-timing problem, just compressed onto its own floor and silos instead of spread across farms.
Practically, that means:
- Your working-capital needs are driven by storage capacity and order backlog, not by production speed. A brewery's cash cycle is roughly "buy malt, brew, sell beer" over weeks. A maltster's is "commit to a farmer months before harvest, hold grain for months after harvest, process over 8–9 days, then wait for a brewery's own order and payment cycle." Cash flow forecasting has to model that full span, not just the malting-floor turnaround.
- Grain quality risk sits on your balance sheet for longer than you'd like. The longer barley sits in storage before malting, the more exposure you carry to moisture damage, pest issues, or germination-rate decline — any of which can turn a costed asset into a write-down.
- Financing structured around the malting cycle (not a generic small-business line of credit) is worth shopping for specifically, given how far this cash cycle diverges from most retail or service-business norms lenders are used to underwriting.
Why This Isn't "Brewery Accounting, But Smaller"
It's worth being explicit about the comparison, because the temptation is to treat a malthouse's books as a scaled-down version of a brewery's TTB-excise-tax, cost-per-barrel framework. Two things separate them:
- A brewery's core inventory challenge is tracking a finished input (malt, hops, yeast) through a brewing work-in-process into a sold-by-volume finished product (beer, taxed by the barrel). A maltster's core inventory challenge is tracking a live, respiring raw commodity through a biological conversion that changes its physical form and weight before it's even a "finished good."
- A brewery's supplier relationships are largely arm's-length purchase orders. A maltster's grain sourcing is frequently a multi-season financial relationship with individual farmers, closer to what you'd see in a commodity-processing or agribusiness ledger than a standard beverage-manufacturing one.
Neither is harder than the other — they're just different enough that borrowing a brewery chart of accounts wholesale and lightly editing it will leave real gaps around yield costing and contract-growing treatment.
Keep Your Finances Organized from Grain to Grain Bill
Whether you're tracking batch-level yield ratios through an 8-day malting cycle or reconciling farmer contract advances against delivered barley, the common thread is that generic bookkeeping templates weren't built for a business that converts a living commodity into a different product before it's sold. Beancount.io offers plain-text accounting that gives you full transparency and control over exactly this kind of granular, batch-by-batch tracking — no black boxes, no vendor lock-in. Get started for free and see why developers and finance-minded operators are switching to plain-text accounting.