Question: which wine corks are best?
Answer: Aglica* wine corks are rated for around 1 year. Synthetic* wine corks are rated for around 2 years. Agglomerated* "1+1" wine corks are rated for upto 5 years. Grade 3 natural wine corks are rated for 5-10 years. Grade 2 natural wine corks are rated for 5-15 years.