Пусть гранат и вкусный, он быстро пачкает пальцы.

Although pomegranate is tasty, it quickly stains your fingers.

Breakdown of Пусть гранат и вкусный, он быстро пачкает пальцы.

• вкусный: tasty
• быстро: quickly
• палец: the finger
• он: it

Questions & Answers about Пусть гранат и вкусный, он быстро пачкает пальцы.

What does пусть mean here? I thought it meant let.

In this sentence, пусть does not mean let in the literal command sense. Here it is part of a concessive pattern:

пусть ... и ... = although ..., even if ..., granted that ...

So:

Пусть гранат и вкусный...
means something like:
Although pomegranate is tasty... / Granted, pomegranate is tasty...

This use of пусть is fairly common in more formal or literary-style Russian.

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Why is there an и in пусть гранат и вкусный?

The и helps form the concessive expression with пусть.

So the pattern is:

• пусть X и Y, ...
• although X is Y, ...

In your sentence:

• пусть гранат и вкусный
• literally: although pomegranate is tasty

This и does not simply mean and here. It is part of the structure that gives the meaning even though / although.

A very similar idea appears in other sentences like:

• Пусть он и молод, но очень опытен.
  Although he is young, he is very experienced.

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