Planning

The Planning tab is the prep surface of the brew log — everything you sort out before brew day. It holds seven cards: a Targets strip across the top, then Yeast + starter, Water salts, and Hop schedule in one column, with Inventory vs. recipe, Recent batches, and the Pre-brew checklist in the other.

Targets

A four-cell strip at the top of the tab:

Brew date

the planned brew day. Click to pick a date; the cell shows the formatted weekday below it. This date drives the yeast-age math and the timeline's brew-day label.

Batch size

read-only target volume, post-boil into the fermenter.

Target OG

read-only original gravity target, with the pre-boil gravity and volume below it.

Target ABV

read-only, with the target IBU and color below it.

Yeast + starter

The yeast card plans your pitch: what you have, what the batch needs, and the starter (if any) that bridges the gap.

Pitch math

The readout at the top of the card shows the running result:

Pack viable

estimated viable cells (billions) in your packs today, with the pack count, age in days, and the percentage still alive.

Bar + status line

a bar compares your final cell count against the target (the dark tick). The status line says where you stand: meets target pitch, N% under target, N% under — underpitch risk, or N% over — overpitched.

Target line

the target cell count, your pitch rate, and the wort gravity in °P used for the math.

Yeast

Strain

click to open the yeast picker and choose a strain from the ingredient library. The card header shows the lab and the cells-per-pack figure (200 B for dry sachets, 100 B for liquid packs).

Manufactured

the date on the pack. The card shows the resulting age in days — older yeast means fewer viable cells, and liquid yeast loses viability faster than dry.

Packs

how many packs you'll pitch, shown against the recipe's pack count.

Pitch rate

Set the pitch rate in M/mL/°P (million cells per milliliter per degree Plato) — type a value or drag the slider across its stops (0.5–2.0). The label on the right shows the standard band (ale norm 0.75–1.25) and whether your rate is in band or out of band. Higher rates suit lagers and high-gravity worts.

Starter

Stir plate

toggle on if the starter sits on a stir plate — continuous aeration grows more cells from the same wort.

Calculate starter size

toggle on (the default) to let the card size the starter to hit your target; the Size field shows the computed liters. Toggle off to set the size yourself.

Size

starter volume in liters — computed when auto-calc is on, editable when it's off.

Gravity

the starter wort's gravity (default 1.037).

DME

read-only grams of dry malt extract needed for that size and gravity, with the g/L figure beside it.

The footer names the growth model used for the starter math, with a link to change it in Settings (Settings → Brewing Calculations).

Water salts

A read-only summary of the recipe’s water additions, split into Strike water and Sparge water sections — each with its volume in the section header. Every row shows the salt’s formula, name, and amount in grams (acids show milliliters). The card header totals the grams.

The footer shows the SO₄ : Cl ratio with a plain-language read of the balance (crisp/hoppy versus round/malty). A batch with no additions shows “No water adjustments planned”.

Hop schedule

A read-only view of the recipe’s hop additions, grouped by stage — Boil, Whirlpool, Dry hop — and then by timing, so charges added at the same time share one heading. Each row shows the variety, its alpha-acid percentage, and the weight. The header and footer total the weight and IBU across all additions.

Inventory vs. recipe

The BOM card checks the recipe’s ingredient list against your on-hand stock, grouped into Fermentables, Hops, Yeast, and Misc. Each row shows a status dot, the ingredient (with maker), the recipe quantity, and your on-hand quantity:

The card header tallies the result: all on hand, or counts of missing and short rows.

Swap an ingredient. Click the ⇄ button on a row to swap it for a different ingredient of the same type — the matching picker opens (fermentable, hop, yeast, or misc). Swaps change this batch’s list, not the recipe — use Update recipe to write them back.

Remove from inventory. Deducts the recipe quantities from your on-hand stock, after an inline confirmation. The button then reads Removed from inventory; clicking it again asks “Already removed — remove again?” before deducting a second time, so a double-click can’t drain stock silently.

Update recipe. Writes the batch’s current ingredient list back to the recipe. The confirmation offers two targets: Update [version] overwrites the recipe version the batch came from, while New [version] branches a fresh recipe version and leaves the original untouched.

Recent batches

Past brews of the same recipe (up to five, newest first, excluding the current batch), for reference while planning: Date, Batch, OG → FG, ABV, and Eff (brewhouse efficiency) per row, with your target OG in the card header for comparison. Each row’s OG is tinted against your target, a row that has notes shows them beneath it, and a footer reports the median ABV and efficiency across the listed brews. A first-time recipe shows “No prior brews of this recipe yet.”

Pre-brew checklist

A simple tick list for brew-day prep. The header counts progress (for example, 3 of 7).

Check off

click an item (or its checkbox) to toggle it done; done items show struck through.

Add

click Add checklist item at the bottom of the card and type; Enter saves, Escape cancels.

Remove

hover an item and click the delete button that appears.

Update default

saves the current list as your default checklist — new brews start with it. Asks for confirmation first; the button reads Default saved when the list matches the saved default.

Use default

replaces the current list with your saved default, discarding edits. Asks for confirmation first.