You can do 1 or 2 separate blogs - it truly will depend on you.
Blogs require time to write materials that are current thus requires time on behalf of you.
You can be creative and have 1 blog reference a second blog as readers may be interested in 1 product or interested in 2 or more products.
The more varied you are with your blogging the more people you will attract. Creatively supporting 2 blogs will not hurt at all but only increases your web presence.
If you have the skills or have people who may help you with this - I would encourage you to develop and maintain 2 blogs.
You can do 1 or 2 separate blogs - it truly will depend on you.
Blogs require time to write materials that are current thus requires time on behalf of you.
You can be creative and have 1 blog reference a second blog as readers may be interested in 1 product or interested in 2 or more products.
The more varied you are with your blogging the more people you will attract. Creatively supporting 2 blogs will not hurt at all but only increases your web presence.