An anti freeze bottle is a junk item in Fallout 4.


A pre-War red plastic bottle that contains antifreeze. It can be used in crafting food, chems, syringer ammo, and reactor coolant, or it can be used as a junk item.


The anti freeze bottle can be broken down in to its individual components for use in crafting.

Anti freeze bottle (1)
Icon range
Icon level
Acid (2)

The anti freeze bottle can also be used as a component to produce berserk syringe, Yellow Belly syringe, Berry Mentats, reactor coolant (following the completion of the main quest with the Brotherhood of Steel) and indirectly, Fury at a chemistry station. It can also be used at a cooking station to produce mirelurk jerky.



  • Anti freeze bottles can be found around the Commonwealth and are sometimes sold by junk vendors.
  • Four bottles at the Red Rocket shop north of Wilson Atomatoys factory between Quincy ruins and Quincy Quarries - One outside the front of the building on the ground next to the weapons workbench, 3 inside the building on the top shelf in front of the cash register.
  • Three bottles can be found at Jamaica Plain, in the open ruins of the store containing two unactivated police protectrons side-by-side in pods against the back wall.
  • Two bottles at Saugus Ironworks. The first bottle lays on the floor, on the left side when you enter the building. The second bottle is on the second floor in the first section of the building - from the first bottle (or entrance) go to the far back (south side) of the building, climb the stairs to the second level, turn left at the terminal and locked double doors (which requires said terminal) and move down the hallway until you enter the next room, then turn right and you should see the bottle on the floor between a cigarette machine on the left and a two-drawer filing cabinet on the right.
  • Two bottles can be found inside the Charlestown laundry in the office behind the locked door.
  • Two bottles in Cambridge at College Square subway tunnels.
    • The first one can be found when you walk in the entrance and go down the first set of stairs, keep going straight and go down the stairs on the right side. When you get to the lowest floor, go straight towards the back, go through the small door way and look to the right on the shelf (respawns).
    • The second one is near a raider camp site. You continue down the subway tunnel from the first location, and you turn left right through the arch way. Turn left and go past the burning trash can and into the remnants of an old pre-War subway train. Continue through the train until you get to the middle, and turn right and immediately look right. There will be two sleeping bags and a few shelves with a duffle bag. The bottle will be on the middle shelf next to the tool box. (This one should also spawn back.)
  • One bottle near Doctor Carrington at the Railroad HQ.
  • One bottle at Westing Estate. From the fast travel point, pass through the fence, and then look to your left towards the small garage with lights above the door. It is located on a cabinet, next to a toolbox (respawns).
  • One bottle at Mass Fusion containment shed. The bottle is located on a shelf behind a locked door. Requires you to hack a terminal to reach (respawns).
  • One bottle at the unmarked Graygarden homestead, west of Graygarden. Seek the garage outside the house. It is located on a cabinet shelf below a radio (respawns).
  • One bottle at Hardware Town, southwest of Diamond City. From the main entrance, head to the warehouse. It is next to a toilet, located to your right when you enter the warehouse.
  • One bottle at General Atomics Galleria. The bottle sits on a shelf inside General Atomics outlet.
  • One bottle in Vault 114, located in a blue plastic crate on the floor of the small, square room labeled "depot" beside the lavatory, across the hall from the showers.
  • One bottle at Charles View Amphitheater, it must be stolen from the Pillars of the Community. It is sitting on the floor against the bottom of the blue arch, in the bottom left corner of the wall facing the front door to the stage area.
  • One bottle lies on the ground right next to the deathclaw in the Old Gullet sinkhole.
  • One bottle can be found in the basement of the Suffolk County charter school just before the lift.
  • One bottle can be found on The Prydwen in the same section as the Proctor Ingram with the four power armor stations. Top of the shelf in the center of the room, you should see it as you approach.
  • One bottle can be found inside the Captain’s Cabin in Libertalia. Once inside, head to the back, make a U-turn to the right into the adjacent room. The bottle should be visible sticking out of a wooden crate, mid-level on the back rusted shelf.
  • One bottle is available in Med-Tek Research. It's in the storeroom to the left in the lab located off the right side of the first room past the Med-Tek Labs Airlock. This airlock is inaccessible until visiting Med-Tek Research with MacCready during his companion quest, Long Road Ahead.
  • One bottle is placed in a bin, on the lower levels of the Yangtze.
  • One bottle can be found in the Castle tunnels near the generator and fusion core.
  • One bottle can be found on the westernmost room of the lower level of Medical Center metro.
  • One bottle can be found in ArcJet Systems during the Call to Arms quest. Paladin Danse will have you, find a way to open a door, through the door just to left on a cabinet is the bottle.
  • One bottle can be found inside Marowski's chem lab, on a cabinet.
  • One bottle can be found in the Greenetech Genetics building during Hunter/Hunted. It can be located on one of the top floors, inside a broken safe, at the location of Z2-47.
  • One bottle can be found inside Acadia's basement, on a rack where you first meet Kasumi Nakano.
  • One bottle can be found at the white tent on the 3rd floor of Cliff's Edge Hotel.
  • One bottle can be found on a rack in the shack near the sea at Rayburn Point.
  • One bottle can be found on a rack in the shack in Haddock Cove near the Husky family holotape.


Anti freeze bottles are relatively uncommon, used for several recipes, and can easily be dismantled for acid and plastic by accident. When crafting multiple items it is advisable to make the ones explicitly using the anti freeze bottle first, as one may consume all of them crafting other items with acid or plastic. For these recipes, it should be noted the suprathaw antifreeze is not able to be used, and so does not need to be preserved.

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