The fire and rescue service says the unknown substance found on Garwick Beach on Boxing Day was most likely palm oil.
Firefighters say though the risk to humans is low, if dogs eat it, it can be serious.
People are still being asked to avoid touching or removing the yellowy material from the beach south of Laxey.
Meanwhile the coastguard is warning people to keep dogs away from the area until the tide has washed leftover pieces away.
Filipino festival planned for Laxey
A huge celebration of the Island's Filipino community will take place in Laxey later this year.
Glen Maye requisition meeting scheduled
A requisition meeting will be held in Glen Maye next month.
Political satire is coming to the Gaiety Theatre in Douglas next week, just in time to poke fun at the general election.
Viking longboat races today
Viking races will finally get underway in Peel today - after a six-week delay.
Postal vote applications have to be in soon
Living far away but want to cast your vote in September's election? Time's running out!
Mum launches petition over university support
A petition's been launched calling on government to provide more support for Manx university students.
Bus services north and south face disruption later
Bus Vannin says a number of its services may face disruption this evening.
Wildlife Trust unveils woodland plans
The Manx Wildlife Trust has submitted a planning application for a new woodland in the northeast of the Island.
