About Will It Slush?

Will It Slush? exists because too many people pour a drink into a home slushie machine, wait an hour and end up with a frozen brick or a watery puddle. Whether a drink slushes is not luck — it's chemistry. This site turns that chemistry into a tool you can use in two clicks.

Who's behind it

Will It Slush? is built by a small team of home-bar obsessives and software builders who got tired of guessing. The site started as an internal spreadsheet for calibrating Ninja Slushi cocktails for a summer party, then grew into a public reference because nobody else was publishing the actual numbers.

We are not affiliated with SharkNinja, Ninja, or any liqueur or beverage brand mentioned on the site. We bought our own machines and our own ingredients.

How the slush engine works

A countertop slushie machine like the Ninja Slushi keeps the drink chamber a few degrees below 0 °C and scrapes the ice as it forms. Whether you get a slush depends on the freezing point depression caused by the sugar and alcohol in the mix. Too much of either and the liquid never freezes. Too little and it locks up into a solid block.

Our engine calculates the effective freezing point of any recipe from first principles (mass fractions of ethanol and dissolved solids, using Brix and ABV as inputs) and maps it to a "slush window". We then validated the model against hundreds of real Ninja Slushi test batches shared by the home-bartender community on Reddit, YouTube and TikTok, and tuned the constants until the predictions matched what people actually observed in their machines.

The result is the calibrated slush window we recommend: ABV 8–14 % and Brix 11–13 % for the Ninja Slushi FS301/FS305, with model-specific adjustments for other machines. The full derivation lives in our science guide.

What you'll find on the site

• The calculator — paste any recipe, see whether it will slush, get a verdict and a fix in seconds.
• The recipe library — every recipe is calibrated through the engine before it's published.
• The AI assistant — a chat that reasons about any drink you throw at it, grounded in our engine.
• Troubleshooting and best ingredients guides built from real-world test data.

Editorial standards

Every original recipe in the curated library is run through the engine and tagged with its calculated verdict before publication. Recipes generated with the help of large language models are clearly marked as AI-assisted and are excluded from the search index until a human editor reviews them — so Google never sees an unreviewed machine-written page indexed as authoritative content.

We update older recipes when we find better ingredient data, and we publish corrections openly rather than silently editing.

How we make money

The site is free. We cover costs through display advertising (Google AdSense) on content pages and through affiliate links — mainly Amazon — on product recommendations. As an Amazon Associate we may earn a commission from qualifying purchases at no extra cost to you. Affiliate links never change which recipe or recommendation appears first; those are editorial.

Get in touch

Found a bug, have a recipe to share, want to talk partnerships, or need to exercise a GDPR right? Use the contact page. See also the Privacy Policy and Terms of Service.

21+ where applicable. Please drink responsibly.