diff --git a/data/json/recipes/food/brewing.json b/data/json/recipes/food/brewing.json
index 10741ea485dc6..c02e55b0915ff 100644
--- a/data/json/recipes/food/brewing.json
+++ b/data/json/recipes/food/brewing.json
@@ -68,7 +68,9 @@
     "tools": [ [ [ "surface_heat", 58, "LIST" ] ] ],
     "//": "assuming grains are roasted, that's 52u flour by weight, plus 6u to heat water and activate yeast",
     "components": [ [ [ "water_clean", 3 ] ], [ [ "malted_grain", 2 ] ], [ [ "sugar", 50 ] ], [ [ "yeast", 1 ] ] ],
-    "charges": 3
+    "//1": "Using 3x250ml of water, this should give us ~750ml of product. For brew_whiskey it is 7 charges",
+    "//2": "per 250ml. Hence 3x7=21 charges",
+    "charges": 21
   },
   {
     "type": "recipe",
@@ -90,7 +92,9 @@
       [ [ "corn", 3 ], [ "cornmeal", 5 ], [ "barley", 1 ], [ "buckwheat", 1 ], [ "oats", 3 ] ],
       [ [ "juniper", 10 ] ]
     ],
-    "charges": 3
+    "//1": "Using 2x250ml of water, this should give us ~500ml of product. For brew_gin it is 7 charges",
+    "//2": "per 250ml. Hence 2x7=14 charges",
+    "charges": 14
   },
   {
     "type": "recipe",
@@ -121,7 +125,9 @@
     "book_learn": [ [ "brewing_cookbook", 6 ] ],
     "qualities": [ { "id": "CONTAIN", "level": 1 } ],
     "components": [ [ [ "sake_koji_rice", 1 ] ], [ [ "rice_cooked", 1 ] ], [ [ "water_clean", 3 ] ], [ [ "yeast", 1 ] ] ],
-    "charges": 3
+    "//1": "Using 3x250ml of water, this should give us ~750ml of product. For brew_sake it is 7 charges",
+    "//2": "per 250ml. Hence 3x7=21 charges",
+    "charges": 21
   },
   {
     "type": "recipe",
@@ -153,7 +159,9 @@
     "book_learn": [ [ "cookbook_sushi", 6 ] ],
     "qualities": [ { "id": "CONTAIN", "level": 1 } ],
     "components": [ [ [ "soy_wheat_dough_done", 1 ] ], [ [ "water_clean", 3 ] ], [ [ "salt", 30 ] ] ],
-    "charges": 3
+    "//1": "Using 3x250ml of water, this should give us ~750ml of product. For brew_soy_sauce it is 10 charges",
+    "//2": "per 250ml. Hence 3x10=30 charges",
+    "charges": 30
   },
   {
     "type": "recipe",
@@ -184,7 +192,9 @@
       ],
       [ [ "yeast", 1 ] ]
     ],
-    "charges": 3
+    "//1": "Using 3x250ml of water, this should give us ~750ml of product. For brew_vodka it is 7 charges per 250ml.",
+    "//2": "Hence 3x7=21 charges",
+    "charges": 21
   },
   {
     "type": "recipe",
@@ -201,7 +211,9 @@
     "qualities": [ { "id": "BOIL", "level": 2 } ],
     "tools": [ [ [ "surface_heat", 2, "LIST" ] ] ],
     "components": [ [ [ "water_clean", 3 ] ], [ [ "molasses", 2 ], [ "sugar_beet", 5 ] ], [ [ "yeast", 1 ] ] ],
-    "charges": 3
+    "//1": "Using 3x250ml of water, this should give us ~750ml of product. For brew_rum it is 7 charges per 250ml.",
+    "//2": "Hence 3x7=21 charges",
+    "charges": 21
   },
   {
     "type": "recipe",
@@ -219,7 +231,9 @@
     "tools": [ [ [ "surface_heat", 60, "LIST" ] ] ],
     "//": "30u for corn and 30u to heat water & activate the yeast",
     "components": [ [ [ "water_clean", 15 ] ], [ [ "cornmeal", 12 ], [ "corn", 2 ] ], [ [ "sugar", 100 ] ], [ [ "yeast", 2 ] ] ],
-    "charges": 15
+    "//1": "Using 15x250ml of water, this should give us ~3750ml of product. For brew_moonshine it is 7 charges per 250ml.",
+    "//2": "Hence 3750/250ml*7=105 charges",
+    "charges": 105
   },
   {
     "type": "recipe",
@@ -242,6 +256,8 @@
       [ [ "yeast", 1 ] ],
       [ [ "juice", 2 ], [ "apple_cider", 4 ], [ "sweet_fruit", 1, "LIST" ] ]
     ],
+    "//1": "Using 10x250ml of water, this should give us ~2500ml of product. For brew_hb_seltzer it is 1 charge per 250ml.",
+    "//2": "Hence 2500/250*1=10 charges.",
     "charges": 10
   },
   {
@@ -261,7 +277,9 @@
     "tools": [ [ [ "surface_heat", 54, "LIST" ] ] ],
     "//": "24u for pumpkin and 30u to heat water & activate the yeast",
     "components": [ [ [ "water_clean", 15 ] ], [ [ "pumpkin_cut", 12 ] ], [ [ "sugar", 50 ] ], [ [ "yeast", 2 ] ] ],
-    "charges": 15
+    "//1": "Using 15x250ml of water, this should give us ~3750ml of product. For brew_moonshine it is 7 charges per 250ml.",
+    "//2": "Hence 3750ml/250ml*7=105 charges",
+    "charges": 105
   },
   {
     "type": "recipe",
@@ -277,7 +295,9 @@
     "proficiencies": [ { "proficiency": "prof_food_prep" }, { "proficiency": "prof_fermenting" }, { "proficiency": "prof_winemaking" } ],
     "qualities": [ { "id": "CONTAIN", "level": 1 } ],
     "components": [ [ [ "juice", 2 ] ], [ [ "yeast", 1 ] ], [ [ "water_clean", 2 ] ] ],
-    "charges": 3
+    "//1": "Using 2x250ml of water plus 2x125ml of juice, this should give us ~750ml of product. For brew_fruit_wine it is 7 charges",
+    "//2": "per 250ml. Hence (750ml/250ml)x7=21 charges",
+    "charges": 21
   },
   {
     "type": "recipe",
@@ -295,6 +315,8 @@
     "tools": [ [ [ "surface_heat", 74, "LIST" ] ] ],
     "//": "assuming grains are roasted, that's 52u flour by weight, 2u for hops, plus 20u to heat water and activate yeast",
     "components": [ [ [ "water_clean", 10 ] ], [ [ "malted_grain", 2 ] ], [ [ "hops", 1 ] ], [ [ "yeast", 1 ] ] ],
+    "//1": "Using 10x250ml of water, this should give us ~2500ml of product. For brew_hb_beer it is 1 charge per 250ml.",
+    "//2": "Hence 2500ml/250ml*1=10 charges.",
     "charges": 10
   },
   {
@@ -315,7 +337,9 @@
       [ [ "honey_bottled", 12 ], [ "honeycomb", 2 ], [ "honey_glassed", 4 ] ],
       [ [ "yeast", 1 ] ]
     ],
-    "charges": 3
+    "//1": "Using 3x250ml of water, this should give us ~750ml of product. For brew_mead it is 7 charges per 250ml.",
+    "//2": "Hence (750ml/250ml)x7=21 charges",
+    "charges": 21
   },
   {
     "type": "recipe",
@@ -338,7 +362,9 @@
       [ [ "hops", 1 ] ],
       [ [ "yeast", 1 ] ]
     ],
-    "charges": 3
+    "//1": "Using 3x250ml of water, this should give us ~750ml of product. For brew_hopped_mead it is 7 charges per 250ml",
+    "//2": "(copy from brew_mead). Hence (750ml/250ml)x7=21 charges",
+    "charges": 21
   },
   {
     "type": "recipe",
@@ -368,7 +394,9 @@
       ],
       [ [ "yeast", 1 ] ]
     ],
-    "charges": 3
+    "//1": "Using 3x250ml of water, this should give us ~750ml of product. For brew_spiced_mead it is 7 charges per 250ml",
+    "//2": "(copy from brew_mead). Hence (750ml/250ml)x7=21 charges",
+    "charges": 21
   },
   {
     "type": "recipe",
@@ -397,7 +425,9 @@
       [ [ "sugar_standard", 2, "LIST" ], [ "honeycomb", 1 ] ],
       [ [ "yeast", 1 ] ]
     ],
-    "charges": 3
+    "//1": "Using 3x250ml of water, this should give us ~750ml of product. For brew_dandelion_wine it is 7 charges per 250ml.",
+    "//2": "Hence (750ml/250ml)x7=21 charges",
+    "charges": 21
   },
   {
     "type": "recipe",
@@ -431,7 +461,9 @@
       [ [ "sugar_standard", 2, "LIST" ], [ "honeycomb", 1 ] ],
       [ [ "yeast", 1 ] ]
     ],
-    "charges": 3
+    "//1": "Using 3x250ml of water, this should give us ~750ml of product. For brew_burdock_wine it is 7 charges per 250ml.",
+    "//2": "No distilling/evaporation (just roasting), so no volume loss. Hence (750ml/250ml)x7=21 charges",
+    "charges": 21
   },
   {
     "type": "recipe",
@@ -454,7 +486,9 @@
       [ [ "sugar_standard", 2, "LIST" ], [ "honeycomb", 1 ] ],
       [ [ "yeast", 1 ] ]
     ],
-    "charges": 3
+    "//1": "Using 3x250ml of water, this should give us ~750ml of product. For brew_burdock_wine it is 7 charges per 250ml.",
+    "//2": "No distilling/evaporation (not even roasting, see comment above), so no volume loss. Hence (750ml/250ml)x7=21 charges",
+    "charges": 21
   },
   {
     "type": "recipe",
@@ -518,7 +552,9 @@
         [ "wild_herbs", 40 ]
       ]
     ],
-    "charges": 1
+    "//1": "Using 2x250ml of water, this should give us ~500ml of product. For brew_vinegar it is 16 charges per 250ml.",
+    "//2": "Hence (500ml/250ml)x16=32 charges",
+    "charges": 32
   },
   {
     "type": "recipe",
@@ -567,6 +603,8 @@
       [ [ "yeast", 1 ] ],
       [ [ "sassafras_root", 1 ] ]
     ],
-    "charges": 1
+    "//1": "Using 1x250ml of water, this should give us ~250ml of product. For brew_rootbeer it is 7 charges per 250ml.",
+    "//2": "Hence (250ml/250ml)x7=7 charges",
+    "charges": 7
   }
 ]