Refresco Garber have issued a statement saying they are disappointed the strike is going ahead.
20% of the factory employees voted for industrial action and those taking part will hold a series of 11 walkouts over the next 10 weeks.
Around 430 members of staff at a soft drinks company in Bridgwater are on strike.
The union members at Refresco Gerber are beginning the first in a series of 36 hour walk-outs in protest to changes to pay and conditions.
Young unemployed people in the South West are getting free training this week as part of a nationwide campaign to help them find work.
Feeding Britain's Future asks employers in the food and grocery industry to pass on the knowledge and skills young people need to succeed in finding a job. 57,000 young people looking for work in the south west could benefit.