The Core Seven
First on the lineEvery bar of consequence runs on the same handful of ingredients before it runs on anything else: fresh lime, fresh lemon, simple syrup, and — for any program with ambition — fresh pineapple, fresh ginger juice, demerara syrup, and Sam Ross's honey-ginger. Get these right and you have already separated yourself from 80% of operating bars.
Fresh Lime Juice
The non-negotiable. Hand-juiced, double-strained, used within 24 hours before the slow oxidative slide into bitterness.
Open recipe → № 02 · CitrusFresh Lemon Juice
More yield per pound than lime, twice the shelf life, and the silent backbone of every sour on your menu.
Open recipe → № 03 · TropicalFresh Pineapple Juice
Mousse-textured, faintly grassy, foaming when shaken. The secret weapon of the Painkiller and the Jungle Bird.
Open recipe → № 04 · RootFresh Ginger Juice
Pungent, peppery, with a slow heat. The backbone of every honest Mule and Penicillin behind the stick.
Open recipe → № 05 · SweetenersSimple Syrup
The most-used and least-respected ingredient behind the stick. Get the ratio right and a hundred drinks improve by Monday.
Open recipe → № 06 · SweetenersDemerara Syrup
A 2:1 demerara is the most consequential upgrade you can make to your Old Fashioned program. Molasses-rich, full-bodied, structured.
Open recipe → № 07 · CompoundHoney-Ginger Syrup
Sam Ross's gift to the modern bar. The single best argument for keeping a compound syrup on your speed rail.
Open recipe → Tools · 6 LiveAll Calculators
Cost & yield, super juice, batched cocktails, acid sub, menu costing, draft & bottled. Built for menu engineering, not for show.
Open the tools →On Method
First principlesThe Position
The default state of most bar prep in America is sloppy. Juice pulled the day before, syrups mixed by eye, dates that don't get written, equipment that isn't sanitized between batches, and a costing model that consists of "we charge fourteen dollars for it." None of this is necessary. None of this is acceptable in a serious program.
Prepshift's method begins from a single premise: prep is production. It is not creative work, it is not improvisation, it is not "feel." It is repeatable, costed, documented manufacturing of consumable inputs, done to a spec, on a schedule, by a person who knows why every step is on the list.
Three Rules
Weigh, do not measure. Volume measurement of solids and viscous liquids introduces a 10–15% error band per batch. Across a week, this is the difference between a recipe that works and one that drifts. Buy a $40 scale. Use it.
Time-stamp everything. Not the date — the time. Lime juice pressed at 11 AM tastes different at 4 PM and different again at midnight. A bar that knows this is a bar that knows what it is selling.
Cost as you go. Every spec is also a cost calculation. If you do not know what a recipe costs to produce, you do not know what your program is. The calculators on this site exist to make that calculation take fifteen seconds, not fifteen minutes.
Prep is production. Repeatable, costed, documented manufacturing of consumable inputs, done to a spec, on a schedule, by a person who knows why every step is on the list.
Placeholder figures pending finalized Prepshift data set.
Two new flagship tools
Just launchedThe two most consequential additions to this site, freshly built. The Menu Costing Engine takes your entire cocktail menu and tells you exactly what each drink should cost — and what it should sell for. The Draft & Bottled section opens the methodology that Morgenthaler made famous: pre-batched, force-carbonated, dispensed at temperature.
Menu Costing Engine
Enter your bottle costs once. See every drink on the menu costed, priced, and margin-analyzed instantly. Solve for any target pour cost from 15% to 30%.
Open the engine → Section · § 06 · Draft & BottledDraft & Bottled Cocktails
The full Morgenthaler methodology. Carbonation pressure, dilution math, bottling protocol, draft line setup. Live calculator included.
Open the section → Reference · § 07Glossary & Index
The trade vocabulary. Acid-adjustment, bromelain, oleo-saccharum, force-carbonation, pour cost, super juice. All the terms used on this site, defined as we use them here.
Open the glossary →The Short List
A serious prep program runs on a remarkably short list of tools: a 0.1-gram scale, a Mexican elbow, a fine chinois, a Champion masticating juicer, deli quarts, a label printer, a refractometer for sugar measurement, and a refrigerator that holds 38°F under load. Total capital cost: under $1,500. The full equipment list is now live, organized by station and ranked by priority.
Open the equipment list →What You Don't Need
Centrifugal juicers (with one exception for pineapple). Rotary evaporators (until your program demands them, which is later than you think). Acid kits beyond citric and malic. Sous-vide circulators (unless you are pasteurizing). Anything labeled "molecular." The fastest way to improve a bar is to subtract equipment, not add it.
New chapters, new tools, new specs
delivered when published.
One email per month, more or less. No spam, no sponsored content, no affiliate-driven recommendations, no list sales. When new recipes go live, when calculators get smarter, when the book moves toward print — that's what you'll hear about.
Subscription form is wired but not yet connected to a backend — coming with v1.0.
About the Work
Standing noticePrepshift was a bar-prep outsourcing service founded in the Washington, D.C. metropolitan area, serving high-end restaurants and bars from a central production facility. Cocktail syrups, super juices, fresh-pressed citrus, ginger juice, cordials, foamers, and other prepared ingredients were produced to spec, costed at the unit level, adjusted seasonally, and delivered against an SLA. The model worked because the underlying methods were tight and the costing was honest.
The next phase — this site, eventually a book — opens the manual. Recipes, methods, equipment, calculators. The data published here will be replaced by Prepshift's production data set ahead of public launch. Until then: useful, approximate, and clearly labeled as such.