Image of the Bluk berry.
Nº 17 (R/S/E); Nº 17 (D/P/Pt) Bluk Berry ← Razz - Nanab →
Gen. III - The berry is blue on the outside, but blackens the mouth when eaten. Gen. IV - Though this small, delicately skinned Berry is blue in color, it dyes the mouth black when eaten.
Size	4.3"
Firmness	Soft
Effect	Pokéblock/Poffin ingredient
Tree
Flavor (Gen. III)
Spicy	-1
Dry	0
Sweet	+1
Bitter	0
Sour	0
Flavor (Gen. IV)
Spicy	0
Dry	10
Sweet	10
Bitter	0
Sour	0
View all berries

Bluk Berries are a type of berry introduced in Generation III. When eaten they have no effect, but can also be used as ingredients for Poffins and PokéBlocks.

Descriptions

Generation III

• Basic Info: "PokéBlock ingredient. Plant in loamy soil to grow BLUK."
• Berry Tag: "The berry is blue on the outside, but blackens the mouth when eaten."

Pokémon FireRed/LeafGreen

• Basic Info: "Can be ground up into a powder as an ingredient for medicine."

Generation IV

• Basic Info: "A Poffin ingredient. Bury it in soft soil to grow a Bluk plant."
• Berry Tag: "Though this small, delicately skinned Berry is blue in color, it dyes the mouth black when eaten."

Locations

Generation III

• Route 114, talk to the guy near Lanette's house

Generation IV

• Growing on Routes 208, 215, and 224 when the player first arrives there
• Sometimes given by the Berry Master on Route 208
• Given by a Juggler in Fuchsia City in exchange for a Blue Shard.^HGSS

Growth Time

Generation III

Bluk Berries take 4 hours to mature from a planted seed to a fully-grown plant, with 1 hours per stage. A Bluk tree can produce 3-6 berries.

Generation IV

Bluk Berries take 8 hours to mature from a planted seed to a fully-grown plant, with 2 hours per stage. A Bluk tree can produce 2-10 berries.

Uses

In Battle

A Bluk Berry does not have any effect on Pokémon.

Berry Blending

• Verdanturf Town - Indigo
• Fallarbor Town - Indigo
• Slateport City - Indigo
• Lilycove City - Indigo

Poffin Cooking

At 100% performance, a Razz Berry can produce a level 13 Sweet Poffin when cooking alone.