Each recipe is orange until its yellow rank and grey from its grey rank. When the ranks differ, it turns green somewhere between the two; the client files give both ranks but not that point. Equal ranks go straight to grey.

Engineering: Explosives
RecipeMakesReagentsNeedsSkill-up
SAF-T DynamiteTaught by Schematic: SAF-T Dynamite, requires 25
SAF-T DynamiteQuantity not confirmedYellow 25Grey 35
Rough Dynamite
2 × Rough DynamiteYellow 30Grey 60
SAF-T Copper BombTaught by Schematic: SAF-T Copper Bomb, requires 55
SAF-T Copper BombQuantity not confirmed
  • Blacksmith Hammer
  • Anvil
Yellow 55Grey 65
Rough Copper Bomb
2 × Rough Copper Bomb
  • Blacksmith Hammer
  • Anvil
Yellow 60Grey 90
Coarse Dynamite
Coarse DynamiteQuantity not confirmedYellow 90Grey 105
Large Copper Bomb
Large Copper BombQuantity not confirmed
  • Blacksmith Hammer
  • Anvil
Yellow 105Grey 155
EZ-Thro DynamiteTaught by Schematic: EZ-Thro Dynamite, requires 100
Ez-Thro DynamiteQuantity not confirmedYellow 115Grey 130
Small Bronze Bomb
Small Bronze BombQuantity not confirmed
  • Blacksmith Hammer
  • Anvil
Yellow 120Grey 170
Heavy Dynamite
Heavy DynamiteQuantity not confirmedYellow 125Grey 145
Small Seaforium ChargeTaught by Schematic: Small Seaforium Charge, requires 100
Small Seaforium ChargeYellow 130Grey 160
EZ-Thro Copper Bomb XLTaught by Schematic: EZ-Thro Copper Bomb XL, requires 130
EZ-Thro Copper Bomb XLQuantity not confirmed
  • Blacksmith Hammer
  • Anvil
Yellow 130Grey 180
Big Bronze Bomb
Big Bronze BombQuantity not confirmed
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 140Grey 190
SAF-T Bronze BombTaught by Schematic: SAF-T Bronze Bomb, requires 145
SAF-T Bronze BombQuantity not confirmed
  • Blacksmith Hammer
  • Anvil
Yellow 145Grey 195
SAF-T Jumbo DynamiteTaught by Schematic: SAF-T Jumbo Dynamite, requires 150
SAF-T Jumbo DynamiteQuantity not confirmedYellow 150Grey 170
Solid Dynamite
2 × Solid DynamiteYellow 175Grey 195
Explosive Sheep
Explosive Sheep
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 175Grey 200
Iron Grenade
Iron GrenadeQuantity not confirmed
  • Blacksmith Hammer
  • Anvil
Yellow 175Grey 215
Portable Bronze MortarTaught by Schematic: Portable Bronze Mortar, requires 165
Portable Bronze Mortar
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 185Grey 205
Flash BombTaught by Schematic: Flash Bomb, requires 185
Flash BombYellow 185Grey 225
Big Iron Bomb
2 × Big Iron Bomb
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 190Grey 230
EZ-Thro Dynamite IITaught by Schematic: EZ-Thro Dynamite II, requires 200
Ez-Thro Dynamite IIYellow 200Grey 220
Shafety SheepTaught by Schematic: Shafety Sheep, requires 175
Shafety SheepQuantity not confirmed
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 200Grey 225
EZ-Thro GrenadeTaught by Schematic: EZ-Thro Grenade, requires 200
EZ-Thro GrenadeQuantity not confirmed
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 200Grey 240
Large Seaforium ChargeTaught by Schematic: Large Seaforium Charge, requires 200
Large Seaforium ChargeYellow 200Grey 240
Goblin Sapper ChargeTaught by Unrevealed item #221338
Goblin Sapper ChargeYellow 205Grey 245
EZ-Thro Bronze MortarTaught by Schematic: EZ-Thro Bronze Mortar, requires 190
EZ-Thro Bronze MortarQuantity not confirmed
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 210Grey 230
Goblin Land MineTaught by Schematic: Goblin Land Mine, requires 195
Goblin Land Mine
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 215Grey 235
SAF-T BombTaught by Schematic: SAF-T Bomb, requires 215
SAF-T BombQuantity not confirmed
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 215Grey 245
Mithril Frag Bomb
3 × Mithril Frag Bomb
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 215Grey 255
Goblin Mortar
Goblin Mortar
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 225Grey 245
Goblin Bomb DispenserTaught by Unrevealed item #221340
Goblin Bomb Dispenser
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 230Grey 270
Hi-Explosive Bomb
4 × Hi-Explosive Bomb
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 235Grey 275
The Big OneTaught by Unrevealed item #221341
2 × The Big One
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil
Yellow 235Grey 275
Tru-Trigger Frag BombTaught by Schematic: Tru-Trigger Frag Bomb, requires 240
Tru-Trigger Frag BombQuantity not confirmedYellow 240Grey 280
Dense Dynamite
2 × Dense DynamiteYellow 250Grey 270
Powerful Seaforium ChargeTaught by Schematic: Powerful Seaforium Charge, requires 275
Powerful Seaforium ChargeYellow 275Grey 295
SAF-T Clever DynamiteTaught by Schematic: SAF-T Clever Dynamite, requires 275
SAF-T Clever DynamiteQuantity not confirmed
  • Blacksmith Hammer
Yellow 275Grey 295
Thorium GrenadeTaught by Schematic: Thorium Grenade, requires 260
3 × Thorium Grenade
  • Blacksmith Hammer
  • Anvil
Yellow 280Grey 300
Unsanctified GrenadeTaught by Schematic: Unsanctified Grenade, requires 260
3 × Unsanctified Grenade
  • Blacksmith Hammer
  • Anvil
Yellow 280Grey 300
EZ-Thro Thorium GrenadeTaught by Schematic: EZ-Thro Thorium Grenade, requires 285
EZ-Thro Thorium GrenadeQuantity not confirmed
  • Blacksmith Hammer
  • Anvil
Yellow 285Grey 305
Dark Iron BombTaught by Schematic: Dark Iron Bomb, requires 285
3 × Dark Iron Bomb
  • Blacksmith Hammer
  • Anvil
Yellow 305Grey 325
Arcane BombTaught by Schematic: Arcane Bomb, requires 300
3 × Arcane Bomb
  • Blacksmith Hammer
  • Anvil
Yellow 320Grey 340
EZ-Thro Dark BombTaught by Schematic: EZ-Thro Dark Bomb, requires 300
EZ-Thro Dark BombQuantity not confirmed
  • Blacksmith Hammer
  • Anarchist's Workbench
Yellow 320Grey 340
EZ-Thro Mana BombTaught by Schematic: EZ-Thro Mana Bomb, requires 300
EZ-Thro Mana BombQuantity not confirmed
  • Blacksmith Hammer
  • Anarchist's Workbench
Yellow 320Grey 340
The Mortar: Reloaded
Goblin Mortar
  • Blacksmith Hammer
  • Arclight Spanner
  • Anvil

From the Forever beta client files, build 1.60.1.70630: the SkillLine, SkillLineAbility, TradeSkillCategory, SpellReagents, SpellEffect, SpellTotems, SpellCastingRequirements and ItemEffect tables.