Best upgrades in Sell Fries! [Anomaly] and the recommended buy order

Upgrades in Sell Fries! [Anomaly] are bought from the in-shop Kitchen Shop and the more dangerous street shop across the road. They fall into three groups: production automation (Conveyor Belt, Vacuum, Auto Peeler, Auto Fryer, Robot Helpers), defense (Window Fries Shooter), and key-search power tools (Flamethrower). The buy order below is the one multiple guides agree on for the fastest path to a profitable, defensible kitchen:

1. Conveyor Belt — the foundation that moves potatoes through the kitchen.
2. Vacuum — increases how many potatoes you can carry per trip to the outdoor pile.
3. Auto Peeler and Auto Fryer — finish the production line so the kitchen runs itself.
4. Window Fries Shooter — handles the Window Anomaly while you keep working.
5. Robot Helpers — auto-collect potatoes onto the conveyor.
6. Flamethrower — bought last when you have the cash to spare, because its main use is burning the potato pile while searching for the Golden Key.

Perks are rolled on level-up and matter as much as the shop upgrades above:

• Walk Faster (+15% movement speed) — the top dodge-and-deliver perk. Take it whenever it rolls, especially on Hard Mode where The Giant appears more often.
• Money Potion — use it right before burning the potato pile for an extra cash payout.
• More Health — the safer pick for fresh runs that have not yet unlocked good gear.
• Cursed perks — offer higher income at the cost of more anomaly spawns. Do not take them with weak defensive upgrades.

The Vacuum is one of the most recommended first purchases in the game because it dramatically speeds up the kitchen loop on its own. It synergizes with later upgrades: once you also have the Conveyor Belt, Auto Peeler, Auto Fryer, and Robot Helpers, the Vacuum keeps the line fed in fewer trips. For the Vacuum's price and Gamepass note, see the Vacuum upgrade page.

Everything on the list above is a Cash purchase in the Kitchen Shop or the street shop. Gems are a separate currency, spent in the lobby on upgrades and class spins — the lobby Gem Bonus is worth buying early precisely because it speeds up the Cash runs that pay for this order. For the earning plan, the four lobby upgrade prices, and the class-spin odds, see the Gems economy page.

The Flamethrower is the late-game cash-rich purchase that clears the outdoor potato pile in seconds while you search for the hidden Golden Key. Every potato the flames destroy is converted into cash, so nothing is wasted during the burn. Drink a Money Potion immediately before starting the burn to multiply the payout. For the full unlock path and the cross-the-road safety note, see the Flamethrower upgrade page.